When a blister develops after a burn, it should be rinsed with cool water while avoiding poking the blister with your hands, then local medication should be applied, and finally some restorative ointment can be used to help repair the affected area. Improper treatment of burns will not only leave scarring, but also cause local infection, and the blisters formed after burns should be properly treated under the guidance of a doctor. Blisters are formed after burns due to high local temperature, which causes congestion and bruising inside the skin, or tissue fluid leakage. After the burn, you can first rinse with cool water can play a local physical cooling effect, reduce local damage, while relieving pain. If the blister is small, it can generally be absorbed on its own, during which time the blister should be avoided to break down and become infected. If the blister is large, it is necessary to poke the blister with a sterile needle after sterilization and disinfect the burn with alcohol under the doctor’s guidance to avoid infection, because the skin itself has a certain repair function, so it can heal on its own when the situation is not serious. If you want to achieve a better repair effect, you can use erythromycin ointment, silver sulfadiazine cream, compound comfrey oil and other medications around the affected skin, which are also effective for the repair of burns, in addition to topical gel preparations to inhibit scar formation, such as recombinant human epidermal growth factor gel. After a burn, the local tissue is damaged and the fibrous tissue starts to repair. In terms of skin physiology, the process of scar formation is also the process of healing and recovery. Paying attention to hygienic care after burns and not eating spicy and stimulating foods and pigmented foods can help avoid scar formation to a certain extent.